Results 111 to 120 of about 540,378 (271)
Journal of Quaternary Science, EarlyView.Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser +7 more
wiley +1 more source
The Sulfonation of Acetone: Characterization of Acetonedisulfonic Acid and Its Salts. [PDF]
ChempluschemAcetonedisulfonic acid and some of its salts were structurally elucidated. Depending on the counterion, either strong hydrogen bonding or different coordination behaviors are found, showing the potential tunability of functionalized (organo)sulfonates. We report the synthesis of acetonedisulfonic acid ([(HOSO2CH2)2CO], ADSA) by slow reaction of acetone
Langwald J +3 more
europepmc +2 more sources
Journal of Raman Spectroscopy, EarlyView.An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello +2 more
wiley +1 more source
Rb-Sr constraints on the age of Moon formation
IcarusDetermining the age of the Moon, which is commonly considered as the termination of Earth accretion has been a complex challenge for geochronology. A number of methods have been used to delineate the age of the Moon based either on absolute chronology of lunar rocks or have relied on more indirect methods using short-lived nuclides such as 182Hf that ...
Yobregat, Elsa +2 more
openaire +3 more sources
Soil Contamination Around the Copper Smelter and the Use of Soil Microarthropods as Bioindicators
Land Degradation &Development, EarlyView.ABSTRACT Soil contamination from smelter emissions, including heavy metals (HM), rare earth elements (REEs), and sulfur, poses a significant threat to soil ecosystems. In the immediate vicinity of the Głogów Copper Smelter, HM concentrations were several times higher than in more distant forest stands.
Jacek Malica +10 more
wiley +1 more source
Bulletin of the Mineral Research and Exploration, 2013 Ankara’nın yaklaşık 50-60 km güneybatısında yer alan erken Miyosen yaşlı Oyaca, Kedikayası ve Boyalık dasitleri adakit ve/veya adakitik kayaçlara benzer özelliklere sahiptir.
Pınar ŞEN, Erdal ŞEN
doaj
A virtual Rb-Sr isochron for an open system.
GEOCHEMICAL JOURNAL, 1974 A linear isochron can be obtained even for an open system. The gradient of this “virtual isochron”, however, is different from that of “true isochron”.
openaire +2 more sources
Land Degradation &Development, EarlyView.ABSTRACT Ditch‐buried straw return (DB) is an innovative practice combining deep tillage and straw incorporation. This study aimed to evaluate its effects on soil physical quality compared to rotary tillage (RT) and identified key constraints to crop in sandy‐loam and clay‐loam paddy soils within rice–wheat systems. Two field experiments were conducted
Yue Zhang +3 more
wiley +1 more source
Литосфера, 2019 Приведены результаты геохимических исследований щелочных сиенитов и гранитов Хушагольского массива, насчитывавшего не менее пяти магматических эпизодов во временном интервале от среднего кембрия до начала позднего карбона (512–319 млн. лет).
doaj
Movement Disorders, EarlyView.Abstract Background Ultrasound‐based neuromodulation, capable of reaching deep brain areas with high precision, represents cutting‐edge technology in non‐invasive brain stimulation and is investigated as a novel treatment for neurological and psychiatric disorders, including Parkinson's disease (PD).
Eva Matt +14 more
wiley +1 more source